Dyeing apparatus.



A. J. & J. A. RAU.

DYEING APPARATUS.

APPLICATION FILED MAE. 4, 1914.

Patented Aug. 25, 1914.

3 SHEETS-SHEET 1.

A. J. & J. A. RAU.

DYEING APPARATUS. APPLICATION FILED MAR.4,1914. I 1,108,233 PatentedAug. 25, 1914.

3 SHEETSSHEBT 2.

A. J. & J. A. RAU.

DYBING APPARATUS.

APPLICATION FILED MAR.4,1914.

1,108,233. Patented Aug. 25, 1914 3 SHEETSSHBET 3.

f "WW if I f QL X i i Tf c HJWHE To al l whom it may concern: I

UNITED STATES PATENT orrion.

' M ALBERT J. RAU AND JULIUS A. RAU, OF CLIFTON, NEW JERSEY.

'. p DYEING APPARATUS.

Be 'it flinown that we, ALBERT. J. RAU and JULIUS-A. RAU,'CltlZ6I1S-0fthe United States,

residing: at Clifton, New Jersey, have invented certain new and usefulImprovements in Dyeing Apparatus, of which the 7 following is a clear,full, and exact description. a

This invention relates todyeing apparatus, and a principal object of thepresent invention is to provide very simple means for facilitating thepassing and guiding of a web of material when the dye is being appliedthereto. 1

In the preferred'form of the invention, a

- dye bath is employed and one of the objects of this invention is toprovide improved means for facilitating the passage y of the dyematerial into the fibers of the web which is being dyed. 1

A further object of the invention is to provide a very simpleconstruction which willfenable the web to behandled in a simple manner,and at the same time permit the development of an excesshydrostatic'pressureon one side of the web which assists the passage ofthe dye liquor through thefibers of'the fabric.

Further objects of the invention will pear more clearly hereinafter.

"The invention consists in-the generalcombination of parts andsimplicity of details hereinafter described, all of which contribute toproduce an efiicient dyeing apparatus} A preferred embodiment of ourinvention-will be particularly described. in the followingspecification, while the broad scope; of our invention willfbepointedout- 40 in the appended claims. p

In the drawings, Figure'l 1s a-front elevation of the apparatusembodying our invention; Fig. 2 is a longitudinal section,-

certa-inparts being broken away; Fig. 3 is a vertical cross-sectionthrough the appara-' tus further illustrating the lnvention; and

7 Figs. 4 and 5 show details.

' Referring more particularly to the parts, we preferto apply the dye inthe form of a dye'liquor, and this is preferably accom- Specification ofLetters Patent. Application filed March 4, 1914. Seria1 No. 822,359.

vat; holdsthe roller 8 in contact with the drum iiso that the drumrotates it and the roller turn rotates the delivery-roll 14 in aidirectionto wind up the web upon it. The l'preferred means for enablingthe rolls 13 Patented Aug. 25,1914.

preferably formed of end rings 5 connected by. a cylindrical body 6,preferably consisting of a Wire screen or similar material.

\Veprovide means for guiding the web 7 of the material to be dyed aroundthe ex- 7 teriorof this' drum so that it comes in contact with the dyebath in the vat. This guiding means preferably consists of two rollers 8and 9, the axles 10 of which are preferably supported at the ends ofhanger InFig. 3, we have illustrated the web 7 as jpassi-ng'from asupply-roll 13 of material gto'be dyed, and the web 7 passes around theinner face of the roller 9 and thence passes around the drum, beingguided from the drum by theinner face of the roller 8 and 'thencebeingwrapped'upon a delivery-roll 14. It should be understoodthat each of;the rolls 13 and 14-may 'act as delivery or gsupply'rollp The rollwhich is acting as a fsupply-roll-is preferably held upon a fixed axisin elevated position, while the receiving 'or delivery roll such as theroll 14, preferably rests on the upper face of itscorrer'sponding'guide-roll such as the roll 8. Now

by asimple rotation of the shaft, the Web 7 ;.will, be'drawn off fromthe supply-roll 13 passed around on the underside of the revolving drumand then guided out of the The weight of the delivery-roll 14 and l tobe-operatedfin this 'Way consists substantially of supporting arms 15correlsponding to each roller and rigidly attached to'shafts-16, Anysuitable means may be iprovided for counterweighting the rolls, for

which purpose the shafts 16 may be pro- **vided with segments 17 meshingwith pinions 18, which-pinions are rigid with counterweight" levers 19.These levers are provided" with adjustable counterweights 2O which-canbe;hung. at different points on the lever, to compensate for differencesin weight'of goods, or removed entirely if necessary. The counterweightlevers 19 are slightly depressed. When one of these rollers- 1s guidingthe material onto the drum, the other is guiding it off of the drum.

preferably provided with clamping devices 21 which cooperate withslotted quadrants 22 so as to enable the arms 15 to be clamped ifdesired, in an elevated position and also enabling the arms to be freelymovable up or down when the clamping device 21 is loose. which isreceiving the web tohave its axle laterally movable, and this isdesirable because as the roll turns, the layers of web accumulate uponit and automatically'raise the roll axis and the arms carrying therolls. The rising ofthe delivery roll acts to move the counterweightedlever in opposite direction so that increased power is exerted by saidlever and the counterbalancingeffeet automatically maintained. It willbe evident that if the delivery-roll 14 is counterweighted at all, thecounterweight should be very light so that there is always some weighton the roll 8 tending to bring about a good frictional contact insuringthe proper rotation of the delivery-roll in winding the web upon it. Thecounterweights are particularly useful when a heavy supply-roll is beingraised'on its arms 15 into a convenient position to facilitate thedelivery of the web onto the drum. It is evident also that the pressureof the roll 14 on the roll 8 tends to raise the supply guide-roll 9 outof contact with the drum. In order to facilitate the rotation of therolls 8 or 9 from the drum 3, we prefer to provide the end rings 5 ofthe drum with grooves to receive bearing rings 5 of rubber or similarmaterial having a good traction effect. Beyond the heads 2 the vat isformed with false heads 23, and the spaces between these false heads andthe heads 2 form conduits 2 1 to facilitate the circulation of the dyeliquon.

While the apparatus described above can i be used simply to pass a webthrough a I bya shaft 27 and mounted in openings 28 bath in which thedrum is immersed, we prefer to facilitate the dyeing apparatus by meansof an excess of the hydrostatic pressure on one side of the web, and weprefer to accomplish this by withdrawing the dye liquor constantly fromthe interior of the drum'and returning it to the exterior. This ispreferably accomplished by providing openlngs 25 in the heads 2vpreferably below theshaft 4,,and the dye liquor is drawnoutwardlythrough these openings in the direction of the arrows in Fig. 2, bymeans of impellers or circulating wheels 26 carried in .the heads 2. Theimpellers in one' end ofv the vat are of opposite pitch from those ofthe opposite end so that at both ends of the'vat the apparatus operatesto withdraw the liquor from the interior of the drum.

combination, a vat for the dye-bath, a drum As the heads 2 are veryclose to the ends ofthe drum, this circulation of the dye I liquorproduces. a slight excess of hydrostatic pressure ongthe outer side ofthe drum This arrangement enables the roll' which assists in producing aflow of the dye liquor through the fibers of the web and renders thedyeing operation more efiective.

In using the apparatus the web to be dyed is run from one roll aroundthe drum and is wrapped upon the opposite roll, and after the oppositeroll is filled, the web can be repassed in the opposite direction aroundthe drum and back to the roll which, originally carried the web. Thisoperation may be repeated as often as desired.

While the drum 3 may have an outer shell 6 of any suitable constructionof reticulated material, it is preferred that a built up constructionsuch as that shown in Figs. 1 and 5 be employed. spiders 3 are fixedrigidly on shaft 4, inside To this end, supporting' the drum, and saidshell 6 is secured rigidly 1 to said spiders. Said built up screenconstruction comprises longitudinal bars or rods 6 attached to the rimsof said spiders 3. On these rods 6 there is helically wrapped,

about the drum, a continuous fine wire 6* and then on this wire is laidan-envelop or inner covering 6 of coarse mesh wire gauze.

Overthis is placed an outer covering (5 of fine mesh wire gauze. gauzeconstruction is that material can be dyed in one passage around the drumand there is no spotted effect produced. Also, in the specificembodiment, the wire gauze is supported from the interior spiders of thedrum and not directly by them, so that the gauze screen is properlysupported on that side toward which the hydrostatic pressure is exerted.

Although the apparatus has been described above with the idea that it isto be used in dyeing the goods, it is obvious that this apparatus may beused for charging the goods or for washing goods, or for other purposes.

It is understood that the embodiment of the invention described above isonly one of I the many embodiments or forms the invention may take, andwe do not wish to be limited in the practice of the invention nor in ourclaims to the particular embodiment disclosed.

That we claim as new is '1. In dyeing apparatus or the like, incombination, a vat for the dye-bath, a drum mounted to rotate insaid'vat, means for guiding the web of material. to be dyed around theunderside of said drum, and a delivery roller disposed above saidvat andreceiving the web directly therefrom, and 'means for producing an excessof hydrostatic pressure in said bath on the outer face of said drum. v

2. In dyeing apparatus or the like, in

in the form of a screen mounted to rotate in said vat, means for guidingthe web of material to be dyed around said drum, said An advantage ofthe time drum being-adapted to beimmersed the bath within said vat, saiddrum having; an

open end, said vat having means for paring the same to the exterior ofsaid drum to create an excess hydrostatic pressure on the outer side ofsaid drum. v

3. In dyeing apparatus or the like, in combination, a vat for thedye-bath, a drum'rotatably mounted within saidvat, means for guiding aweb of material to be dyed onto said drum, a supply-roll, means forsupporting the same in a fixed position to deliver the web tosaidguiding means, and a delivery-roll arranged to IBCGlVG the web after berotated by rotating said drum.

L'In dyeing apparatus or the like, in

combination; a vat for the dye-bath,(a drum rotatably mounted withinsaid vat, means for guiding a web of material-to be dyed onto said drum,a supply-roll for supporting the same in a fixedposition to deliver the'web to said gulding means, and a deliveryroll mounted to rotate about alaterally movable axle arranged to receive the web after passing aroundsaid drum and supported by peripheral contact from beneath so as torotate said delivery-roll to wind up the web 5. In dyeing apparatus orthe like, in com-- bination, a vat for the dye bath, a drum rotatablymounted within said vat, means for guiding a web of material to be dyedonto said drum, a supply-roll, an arm for supporting the same a positionto deliver the web to said guiding means, a second arm, a delivery-rollsupported thereby arranged to receive the web after passing around saiddrum and arranged to be rotated when said drum-rotates, and means forholding either of said arms vfixed. I

6; In dyeing apparatus or the like, in combination, avat for thedye'bath, a drum rotatablymounted within said vat means ior'guiding aweb of material to be dyed onto said drum, a supply-roll, an arm forsupporting the same in a position to deliver the web to said guide, asecond arm,-

a delivery-roll supported thereby arranged to receive the web afterpassing around said drum and arranged to be rotated when saiddrumrotates, means for holding either of said arms fixed, and a guide-rolladjacent said deliver-y'roll for suppgrting the same and forrotating'said deli ry-roll to wind up the web thereupon. 7. In dyeingapparatus or the like in combination, a vat for the dye bath, a drumrotatably mounted therein, a supply guide roll adjacent said drum, asupply-roll from which the web passes to be dyed around said supplyguide roll and around said drum, a delivery guide-roll adjacent saiddrum and receiving the web therefrom, a

,delivery' roll adjacent said delivery guideroll upon which the webwinds, and means for holding the axis. ofeither said supplynoll or saiddelivery-roll fixed.

8. In dyeing apparatus or the like in combination, a; vat for-the dyebath, a drum rotatablymounted therein, a supply guideroll adjacent saiddrum, a supply-roll from which the'web passesto-be dyed around saidsupply guide roll and around said drum, a delivery guide-roll adjacentsaid drum and receiving the Web therefrom, a delivery-roll adjacent saiddelivery guide-roll upon which the web winds, members for movablysupply-roll may lie adjacent to and in contact roll so that saiddelivery-roll can be held adjacent its corresponding guide-roll, andmeans for holding said roll supporting members fixed or loose.

9. In dyeing apparatus or the like, in combination, a vat tor the dyebath, a drum rotatably mounted within said bath, a pair of guide-rollsmounted over said drum and adapted to guide the web to .be dyed inpassing onto or from said drum, a pair of rolls upon whichthe web may bewound, and adjustable arms for supporting said last-named rolls andarrahged sothat said last named rolls may come in contact with saidguide-rolls respectively. a Y

10. In dyeing apparatus or the like, in combination, a vat'for'thedyebath, a drum rotatably mounted within said vat, a pair.

of guide-rolls mounted over said drum and adapted to guide the web tobedyed in passing onto or from said drum,a pair of rolls upon whichthe webmay be wound,

and adjustable arms for supporting said for guiding the web to be dyedonto said a porting said supply-roll so that said suppassing around saiddrum and arranged to' h with its corresponding guide-roll, and mem-"bers for movably supporting the deliverydrum and away 'from the same,apair of rolls upon which the web may wrap, arms movably supporting saidrolls, counterweight levers'associated with said arms and adapted tocarry counterweights to counterbalance the weight of the web on eitherof said rolls, and a clamping device associated with each roll forclamping the supporting arms thereof in a fixed position.

12. In dyeing apparatus or the like, the combination of a delivery rollfor a Web, and means tending to counter-balance the 7 Weight of saidroll, and exerting greater i power on said roll as the Web is graduallyWound thereupon and as said roll becomes heavier, and means forcompensating for difierences in Weight of goods.

14:. In dyeing apparatus or the like the counterbalancing means, andmeans for ad- 242 justing the counterbalance Weight to cornpensate forthe difference in Weight of oods,

Signed at New York city, N. day of February 1914.,

ALBERT. J. RAH.

Witnesses:

BEATRICE MIRvIs, a. ABRAM BERNsTnIN. Signed at Passaic N. l, this28February 1914.

' JULIUS A. RAU. Witnesses:

W. GRAFTON BATEMAN, REGINA 'll. WHITEHEADQ r, this 25 day of I

